I seriously and honestly believe it is because of Stink Bugs... Since they came from China, they have taken over and this is definitely their doing. But hey, what do I know.
How true this is... I love how my girlfriends' never get it... they think I'm just 'doddling.' Little do they know that if I had enough time (and a big enough hot water heater)... I'm sure my thinking in the shower would facilitate my destiny to conquer the world.